As listed
| Field | Value |
|---|---|
| Seller | Aircraft Spruce |
| Material | Carbon steel, cadmium plated (QQ-P-416C); some sizes stainless |
| Use (per the listing) | Wooden structures, under head and nut |
| Listing checked | 2026-09-30 |
Taken from Aircraft Spruce's product page on 2026-09-30. Where the listing does not state a figure, this table does not either.
What it is for
Larger bearing area than the AN960, which is the standard washer for metal structure.
Sizes listed
| Dash | Bolt size | OD (in.) | ID (in.) | Thickness (in.) | Material |
|---|---|---|---|---|---|
| 3 | 3/16 | .875 | .203 | .063 | Cadmium |
| 3 | 3/16 | .875 | .203 | .063 | Stainless Steel |
| 4 | 1/4 | 1.125 | .265 | .063 | Cadmium |
| C4 | 1/4 | 1.125 | .265 | .063 | Stainless Steel |
| 5 | 5/16 | 1.375 | .328 | .063 | Cadmium |
| C5 | 5/16 | 1.375 | .328 | .063 | Stainless Steel |
| 6 | 3/8 | 1.625 | .390 | .063 | Cadmium |
| 7 | 7/16 | 1.812 | .453 | .109 | Cadmium |
| 8 | 1/2 | 2.000 | .515 | .109 | Cadmium |
| 9 | 9/16 | 2.188 | .578 | .125 | Cadmium |
| 10 | 5/8 | 2.375 | .640 | .125 | Cadmium |
As listed by Aircraft Spruce on 2026-09-30. Check the live listing before ordering: stock and part numbers change.
Where to buy
The link opens Aircraft Spruce's own page for this item, so the price and stock you see are theirs and current. We do not copy prices.
The Aviation Point links to third-party manufacturer and distributor websites. We may earn a commission on purchases made through these links, at no additional cost to you. The Aviation Point has no partnership or affiliate agreement with Aircraft Spruce, and these links carry no tracking parameters.
Sources
- Aircraft Spruce — AN970 Flat Washers — product listing, checked 2026-09-30.